Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159906 | Oil well drilling fluids with improved anti-settling properties and methods of providing anti-settling properties to oil well drilling fluids | Keith R. McNally, James Gambino | 2000-12-12 |
| 6130256 | Organoclay thickener compatible with system to be thickened | — | 2000-10-10 |
| 6069217 | Urethane-acrylic copolymer thickening compositions for aqueous systems | Alice C. Eng | 2000-05-30 |
| 5429999 | Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems | William W. Reichert, Alice C. Eng | 1995-07-04 |
| 5336647 | Organoclay compositions prepared with a mixture of two organic cations and their use in non-aqueous systems | William W. Reichert, Alice C. Eng | 1994-08-09 |
| 5164433 | Rheological agents and thickeners | Anthony Ricci, Alfred J. Whitton | 1992-11-17 |
| 5112400 | Clay thickener for use in water-based systems and joint compounds containing such compositions | Wei-Ming Cheng, Michael A. Desesa | 1992-05-12 |
| 4735997 | Nucleophilic substitution of chlorine containing polymers in aqueous medium by amido-thiolate groups | Gideon Levin | 1988-04-05 |
| 4654391 | Grafting of epoxy resin on amide | Gideon Levin | 1987-03-31 |